HeisenbergyoudaoicibaDictYouDict[Heisenberg 词源字典]
in reference to German physicist Werner Heisenberg (1901-1976), pioneer of quantum mechanics. His "uncertainty principle" (deduced in 1927) is that an electron may have a determinate position, or a determinate velocity, but not both.[Heisenberg etymology, Heisenberg origin, 英语词源]